🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.27 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.54 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 937.7

Radius: 13.1

Gravity: 5.46 G

Time & Orbit

Eccentricity (e): 0.193

Orbit Range: 0.44 AU - 0.64 AU

Year: 279 Days

Day: 6.6 Hours

Environment

Temp: -152 °C

Axial Tilt: 28.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (8)

Outer Limit: 61,534,799 km

• M1: 162,912 km (0.073 R)
• M2: 614,548 km (0.05 R)
• M3: 1,091,017 km (0.104 R)
• M4: 1,511,088 km (0.086 R)
• M5: 2,281,517 km (0.109 R)
• M6: 3,454,215 km (0.073 R)
• M7: 3,871,892 km (0.052 R)
• M8: 4,468,488 km (0.099 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.58 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 734.6

Radius: 12.5

Gravity: 4.7 G

Time & Orbit

Eccentricity (e): 0.22

Orbit Range: 0.45 AU - 0.71 AU

Year: 310 Days

Day: 7.1 Hours

Environment

Temp: -146 °C

Axial Tilt: 43.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 61,534,799 km

• M1: 155,432 km (0.066 R)
• M2: 667,805 km (0.073 R)
• M3: 1,194,389 km (0.106 R)
• M4: 1,689,858 km (0.11 R)
• M5: 2,079,710 km (0.119 R)
• M6: 2,593,578 km (0.049 R)
• M7: 2,985,973 km (0.112 R)
• M8: 3,575,389 km (0.046 R)
• M9: 4,177,670 km (0.119 R)
• M10: 4,790,722 km (0.118 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.85 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 199.7

Radius: 13.4

Gravity: 1.11 G

Time & Orbit

Eccentricity (e): 0.062

Orbit Range: 0.8 AU - 0.9 AU

Year: 551 Days

Day: 13.4 Hours

Environment

Temp: -158 °C

Axial Tilt: 0.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (7)

Outer Limit: 61,534,799 km

• M1: 167,550 km (0.111 R)
• M2: 815,757 km (0.111 R)
• M3: 2,167,673 km (0.109 R)
• M4: 2,620,805 km (0.05 R)
• M5: 3,230,117 km (0.118 R)
• M6: 3,850,051 km (0.099 R)
• M7: 4,417,775 km (0.087 R)

Planet 4 - Gas Giant

Semi-Major Axis: 0.95 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 559.1

Radius: 13.6

Gravity: 3.02 G

Time & Orbit

Eccentricity (e): 0.209

Orbit Range: 0.75 AU - 1.15 AU

Year: 651 Days

Day: 5.8 Hours

Environment

Temp: -167 °C

Axial Tilt: 32.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 61,534,799 km

• M1: 169,195 km (0.095 R)
• M2: 635,941 km (0.101 R)
• M3: 1,296,266 km (0.11 R)
• M4: 1,783,805 km (0.096 R)
• M5: 2,326,995 km (0.097 R)
• M6: 2,822,463 km (0.117 R)
• M7: 3,388,392 km (0.092 R)
• M8: 4,173,033 km (0.079 R)
• M9: 5,556,663 km (0.057 R)
• M10: 6,030,141 km (0.097 R)
• M11: 6,893,320 km (0.102 R)

Planet 5 - Gas Giant

Semi-Major Axis: 1.33 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 468.2

Radius: 10.5

Gravity: 4.25 G

Time & Orbit

Eccentricity (e): 0.004

Orbit Range: 1.32 AU - 1.34 AU

Year: 1078 Days

Day: 5.7 Hours

Environment

Temp: -196 °C

Axial Tilt: 4.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (14)

Outer Limit: 61,534,799 km

• M1: 130,599 km (0.06 R)
• M2: 589,266 km (0.099 R)
• M3: 1,247,347 km (0.093 R)
• M4: 1,708,707 km (0.106 R)
• M5: 2,048,444 km (0.111 R)
• M6: 2,444,878 km (0.107 R)
• M7: 2,892,475 km (0.11 R)
• M8: 3,408,288 km (0.091 R)
• M9: 4,031,513 km (0.1 R)
• M10: 4,659,375 km (0.047 R)
• M11: 5,583,591 km (0.11 R)
• M12: 6,364,492 km (0.093 R)
• M13: 6,848,890 km (0.089 R)
• M14: 9,564,689 km (0.106 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 708.7

Radius: 14.9

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.023

Orbit Range: 2.59 AU - 2.71 AU

Year: 3032 Days

Day: 12.4 Hours

Environment

Temp: -211 °C

Axial Tilt: 7.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 61,534,799 km

• M1: 336,446 km (0.069 R)
• M2: 831,615 km (0.085 R)
• M3: 1,502,262 km (0.095 R)
• M4: 2,175,602 km (0.076 R)
• M5: 2,816,778 km (0.056 R)
• M6: 3,620,717 km (0.117 R)
• M7: 4,506,636 km (0.092 R)
• M8: 5,182,968 km (0.049 R)
• M9: 5,899,542 km (0.104 R)
• M10: 7,531,804 km (0.106 R)
• M11: 8,729,933 km (0.097 R)
• M12: 9,301,846 km (0.108 R)
• M13: 12,590,905 km (0.106 R)
• M14: 13,985,307 km (0.12 R)
• M15: 15,071,686 km (0.103 R)
• M16: 18,786,949 km (0.084 R)
• M17: 19,621,556 km (0.053 R)
• M18: 20,418,613 km (0.083 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.26 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 383.4

Radius: 11.7

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.089

Orbit Range: 2.97 AU - 3.55 AU

Year: 4137 Days

Day: 14 Hours

Environment

Temp: -221 °C

Axial Tilt: 3.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 61,534,799 km

• M1: 153,637 km (0.067 R)
• M2: 644,617 km (0.11 R)
• M3: 1,055,862 km (0.07 R)
• M4: 1,736,831 km (0.035 R)
• M5: 2,197,892 km (0.028 R)
• M6: 3,930,983 km (0.05 R)
• M7: 5,188,952 km (0.094 R)
• M8: 6,156,700 km (0.084 R)
• M9: 9,010,429 km (0.056 R)
• M10: 10,248,352 km (0.104 R)
• M11: 11,511,556 km (0.065 R)
• M12: 12,513,862 km (0.112 R)
• M13: 12,921,516 km (0.108 R)
• M14: 16,295,247 km (0.054 R)
• M15: 17,111,603 km (0.06 R)
• M16: 17,670,949 km (0.073 R)
• M17: 19,422,292 km (0.07 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.1 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 203.8

Radius: 7.9

Gravity: 3.27 G

Time & Orbit

Eccentricity (e): 0.214

Orbit Range: 5.58 AU - 8.62 AU

Year: 13298 Days

Day: 20.6 Hours

Environment

Temp: -235 °C

Axial Tilt: 42.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (20)

Outer Limit: 61,534,799 km

• M1: 113,844 km (0.116 R)
• M2: 665,860 km (0.049 R)
• M3: 1,099,245 km (0.11 R)
• M4: 1,562,400 km (0.088 R)
• M5: 1,839,755 km (0.077 R)
• M6: 3,431,177 km (0.099 R)
• M7: 4,260,996 km (0.089 R)
• M8: 5,463,015 km (0.112 R)
• M9: 5,975,687 km (0.099 R)
• M10: 9,252,778 km (0.106 R)
• M11: 12,668,097 km (0.047 R)
• M12: 14,029,887 km (0.101 R)
• M13: 16,643,661 km (0.069 R)
• M14: 18,415,049 km (0.102 R)
• M15: 19,200,887 km (0.086 R)
• M16: 20,009,014 km (0.051 R)
• M17: 21,850,564 km (0.103 R)
• M18: 30,153,994 km (0.05 R)
• M19: 35,434,649 km (0.081 R)
• M20: 36,204,330 km (0.107 R)

Planet 9 - Ice Giant

Semi-Major Axis: 7.29 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 757.1

Radius: 6.9

Gravity: 15.9 G

Time & Orbit

Eccentricity (e): 0.165

Orbit Range: 6.09 AU - 8.49 AU

Year: 13836 Days

Day: 15.3 Hours

Environment

Temp: -223 °C

Axial Tilt: 43.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (25)

Outer Limit: 61,534,799 km

• M1: 85,869 km (0.09 R)
• M2: 305,928 km (0.042 R)
• M3: 883,226 km (0.062 R)
• M4: 1,493,436 km (0.117 R)
• M5: 1,916,498 km (0.112 R)
• M6: 2,195,199 km (0.072 R)
• M7: 2,952,763 km (0.088 R)
• M8: 3,198,402 km (0.098 R)
• M9: 3,989,177 km (0.097 R)
• M10: 7,813,048 km (0.103 R)
• M11: 9,978,477 km (0.048 R)
• M12: 12,578,189 km (0.102 R)
• M13: 16,269,965 km (0.109 R)
• M14: 16,883,466 km (0.097 R)
• M15: 19,750,360 km (0.103 R)
• M16: 21,893,798 km (0.075 R)
• M17: 22,172,200 km (0.059 R)
• M18: 23,697,051 km (0.116 R)
• M19: 29,022,885 km (0.102 R)
• M20: 32,260,930 km (0.062 R)
• M21: 36,637,117 km (0.107 R)
• M22: 39,034,572 km (0.043 R)
• M23: 46,698,023 km (0.038 R)
• M24: 47,779,466 km (0.113 R)
• M25: 49,194,512 km (0.025 R)

Kuiper Belt

Range: 30 - 52 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 411 - 19,186 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit